Man pages matching name tsmimehdrfieldvaluesclear in section 3ts:

TSMimeHdrFieldValuesClear.3ts.en	debian 10 / trafficserver-dev
TSMimeHdrFieldValuesClear.3ts.en	debian 11 / trafficserver-dev
TSMimeHdrFieldValuesClear.3ts.en	debian 12 / trafficserver-dev